package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/*
* 菜品相关处理
* */
@Slf4j
@Api(tags = "菜品相关接口")
@RestController("adminDishController")
@RequestMapping("/admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    private static final String key = "dish_*";


    /*
    * 新增菜品
    * */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品：{}",dishDTO);

        dishService.saveWithFlavor(dishDTO);

        //清理缓存数据,使数据一致
        String key = "dish_"+dishDTO.getCategoryId();
        /*redisTemplate.delete(key);*/
        cleanCache(key);
        return Result.success();
    }

    /**
     * 菜品分类查询
     * @param dishPageQueryDTO
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分类查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("分页查询：{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids){
        log.info("菜品批量删除：{}",ids);
        dishService.deleteBatch(ids);

        //将所有的菜品数据全部清理掉，就是将全部以dish_开头的key数据清理掉
        //查询所有的key
        /*Set keys = redisTemplate.keys("dish_*");
        redisTemplate.delete(keys);*/
        cleanCache(key);

        return Result.success("删除菜品成功！");
    }

    /**
     * 根据id查询菜品(页面回显)
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("根据id查询菜品：id为{}",id);
        DishVO dishVO = dishService.getById(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("修改菜品")
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}",dishDTO);
        dishService.update(dishDTO);

        //考虑到如果修改的是菜品分类，我们就要清理的是两个数据，所以就全部清理
        //将所有的菜品数据全部清理掉，就是将全部以dish_开头的key数据清理掉
        //查询所有的key
        /*Set keys = redisTemplate.keys("dish_*");
        redisTemplate.delete(keys);*/
        cleanCache(key);

        return Result.success("修改菜品成功！");
    }

    /**
     * 菜品的起售和禁售
     * @param status
     * @param id
     */
    @ApiOperation("菜品的停售和起售")
    @PostMapping("/status/{status}")
    public Result updateStatus(@PathVariable Integer status,Long id){
        log.info("修改的菜品状态为；{} id为：{}",status,id);
        dishService.updateStatus(status,id);

        //将所有的菜品数据全部清理掉，就是将全部以dish_开头的key数据清理掉
        //查询所有的key
        /*Set keys = redisTemplate.keys("dish_*");
        redisTemplate.delete(keys);*/
        cleanCache(key);

        return Result.success();
    }
    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanCache(String pattern){
        //将所有的菜品数据全部清理掉，就是将全部以dish_开头的key数据清理掉
        //查询所有的key
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
